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Thread: Chemical levels after beating back the green swamp

  1. Back To Top    #1

    Join Date
    May 2011
    Location
    Atlanta
    Posts
    9

    Chemical levels after beating back the green swamp

    While it has taken a week I am finally winning the battle of the swamp. Got the water to the milky state and it appears that the algae has been beaten back. Since the water was still not clear I decided to flock it. I had a bottle already so I just followed the directions, unfortunately it did not clear the pool. I vacummed the bottom of the pool as best I could and got a lot of what I assume is dead algae out. Currently adding water back in but I'm wondering what may have gone wrong that the pool didn't clear up. In the past we have flocked and never had an issue like this. Chemical levels are below, do I need to raise PH and then see if the flock settles the debris to the bottom? Do I just run whirlpool or should I go back to filtering? Haven't been filtering for over 24 hours now so I'm concerned about algae getting started again.
    Thanks in advance for your help!!
    My current levels of chemicals are as follows:
    PH 6.8
    FC 17
    cc 5
    TC 22
    TA 70 - 90
    CYA 60
    Bink
    24 foot ABG
    Jacuzzi 192 Sand Filter (200 lbs)
    1 HP motor

  2. Back To Top    #2
    Molson's Avatar
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    Apr 2008
    Location
    Midland, Ontario
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    479

    Re: Chemical levels after beating back the green swamp

    Get the pH up. Pool calc advises 125 oz of Borax.
    Keep the pool up at shock level which is where you are at, with a suggest level of 18 ppm.
    Also suggest getting a good kit and doing the testing yourself, either a TF-100 or Taylor K2006
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  3. Back To Top    #3

    Join Date
    May 2011
    Location
    Atlanta
    Posts
    9

    Re: Chemical levels after beating back the green swamp

    I have the TF100 kit, that is what the numbers are from. Wasn't sure if my PH was low because of all the shocking I had done. Should I get the PH up first then go back to shock level with the chlorine? I went ahead and turned the filter back on. Didn't get the bottom as clean as I had hoped as a bunch of white crud came up which I'm assuming is the dead algae. Once I get the PH up I'll shut the pool off overnight to see if any flock that is left in the pool settles to the bottom. Will vacuum again in the a.m........after all this work I really want to go float in the pool...... temps in Atlanta have been in the 90's for the last couple of weeks.....Thank you for the quick response too!! You folks are great!!
    Bink
    24 foot ABG
    Jacuzzi 192 Sand Filter (200 lbs)
    1 HP motor

  4. Back To Top    #4

    Join Date
    Nov 2010
    Location
    Calera, Al
    Posts
    271

    Re: Chemical levels after beating back the green swamp

    A high fc will cause your ph test to be inaccurate... Ph should be adjusted prior to shocking. Keep the pump running you want to keep the water mixing so the chlorine can kill the organics, give your filter time to clear up the water. Be diligent with keeping your chlorine to shock level checking as often as every hour and readding bleach as needed... Your paitence will pay off....
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  5. Back To Top    #5
    Butterfly's Avatar
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    May 2007
    Location
    South Carolina
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    10,045

    Re: Chemical levels after beating back the green swamp

    You should raise your pH now. pH generally test a false high when FC is over 10ppm and it could actually be lower than 6.8.

    As suggested, add borax to get you to 7.2 for now.

    Then, when FC drops below 10, test pH and adjust to 7.2 & 7.5 range. Then resume shocking.
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    You're done SLAMing when:
    1)You lose 1ppm or less FC overnight, & 2)You have .5ppm CC's or less, & 3)your water is clear.

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  6. Back To Top    #6

    Join Date
    May 2011
    Location
    Atlanta
    Posts
    9

    Re: Chemical levels after beating back the green swamp

    OK, going to the store now for Borax. Will update again in a couple of day's. THANK YOU!!
    Bink
    24 foot ABG
    Jacuzzi 192 Sand Filter (200 lbs)
    1 HP motor

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